package pers.kw.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Override
    protected void configure(AuthenticationManagerBuilder builder) throws Exception {
        builder.userDetailsService(userDetailsService());
    }

    @Bean
    @Override
    protected UserDetailsService userDetailsService() {
        InMemoryUserDetailsManager userDetailsManager = new InMemoryUserDetailsManager();
        userDetailsManager.createUser(User.withUsername("admin").password(passwordEncoder().encode(
                "admin")).roles("ADMIN").build());
        userDetailsManager.createUser(User.withUsername("kw").password(passwordEncoder().encode(
                "kw")).roles("ROOT").build());
        return userDetailsManager;
    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .mvcMatchers("/favicon.ico").permitAll()
                .anyRequest().authenticated();
        //授权码模式，必须开启表单登录
        http.formLogin();
        http.csrf().disable();
        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.IF_REQUIRED);
    }
}
